BLACKLABEL Mountain wheels combine Reynolds' asymmetric, hookless MR5 carbon fiber rims and Industry Nine Hydra hubs to set the bar in mountain bike wheel performance. The rim design features a perfect balance of width, depth, and layup for wheels that provide ultimate durability, riding comfort, and trail hugging traction like you've never experienced before. •Asymmetric rim profile provides a stronger wheel through more even spoke tension •Tubeless-ready, hookless rim profile for a no-burp tire fit and ease of inflation •Precision manufactured Industry Nine Hydra that offers a revolutionary, .52 degrees of engagement and durability you can trust •Targeted rim widths to meet specific needs for each rider type •Sapim CX-Ray spokes provide the ultimate combination of vertical strength and lateral compliance on blacklabel enduro, trail and plus models